Detroit (DTW) to Dulles (IAD)
Flight time
≈ 1h 34m
Bearing
124° SE
Detroit (DTW) to Dulles (IAD) is 383 miles (616 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies DTW–IAD
Filed traffic dataIn May 2026, SkyWest Airlines operated the most departures, one of 6 carriers flying nonstop DTW–IAD; the Embraer E175 was the most common aircraft at 40% of departures; flights ran 81% full.
Departures
385
May 2026
Seats
32,983
both directions
Passengers
26,635
both directions
Load factor
80.8%
RPM ÷ ASM
Who flies DTW–IAD?
SkyWest Airlines operated the most nonstop DTW–IAD departures in May 2026 (127), one of 6 carriers on the route.
- OO
127 departures · 9,144 seats
Share of departures33.0%78.5%
Load
- YV
93 departures · 6,834 seats
Share of departures24.2%84.7%
Load
- DL
61 departures · 6,709 seats
Share of departures15.8%82.0%
Load
- YX
61 departures · 4,636 seats
Share of departures15.8%87.6%
Load
- UA
41 departures · 5,560 seats
Share of departures10.6%72.1%
Load
- G7
2 departures · 100 seats
Share of departures0.5%93.0%
Load
What plane flies DTW–IAD?
In May 2026, the Embraer E175 flew 40% of DTW–IAD departures — more than any other aircraft type.
- Embraer E175
154 departures · 85.9% load
40.0% - Bombardier CRJ-900
125 departures · 78.7% load
32.5% - Boeing 717-200
61 departures · 82.0% load
15.8% - Airbus A319
21 departures · 74.7% load
5.5% - Airbus A320
12 departures · 67.8% load
3.1% - Boeing 737-700
6 departures · 78.6% load
1.6% - Bombardier CRJ-550
2 departures · 93.0% load
0.5% - Bombardier CRJ-700
2 departures · 65.4% load
0.5% - Boeing 737 MAX 9
1 departures · 33.5% load
0.3% - Boeing 737-900ER
1 departures · 88.8% load
0.3%
How has DTW–IAD traffic changed?
Nonstop DTW–IAD departures fell from 408 in June 2025 to 385 in May 2026.
Monthly nonstop DTW–IAD traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
408 departures · 25,259 passengers
84.6%
Load
July 2025
401 departures · 24,343 passengers
81.6%
Load
August 2025
416 departures · 24,742 passengers
80.8%
Load
September 2025
387 departures · 22,069 passengers
77.0%
Load
October 2025
404 departures · 23,278 passengers
78.4%
Load
November 2025
350 departures · 19,132 passengers
73.2%
Load
December 2025
366 departures · 19,761 passengers
74.6%
Load
January 2026
303 departures · 14,379 passengers
68.1%
Load
February 2026
287 departures · 13,922 passengers
68.3%
Load
March 2026
348 departures · 19,227 passengers
76.7%
Load
April 2026
339 departures · 20,171 passengers
71.5%
Load
May 2026
385 departures · 26,635 passengers
80.8%
Load
By direction
Each direction is filed separately — they rarely match.
DTW → IAD
79.5% full
194 departures · 13,193 passengers
IAD → DTW
82.0% full
191 departures · 13,442 passengers
Nonstop DTW–IAD traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Detroit (DTW) from Dulles (IAD)?
DTW to IAD is 383 miles (616 km / 333 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from DTW to IAD?
A nonstop covers the 383-mile great-circle distance in roughly 1h 34m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies DTW–IAD?
In May 2026, the Embraer E175 flew the largest share of departures (40.0%), followed by the Bombardier CRJ-900 (32.5%).
What mileage do I earn flying DTW–IAD?
Distance-based programs credit off the 383-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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